# inlcude <string>
# include <cstring>

void print_matching_words(string) ;
bool compare(const string, const string) ;

int main( )
{
  // read contents of the file to an array large enough
  // to hold all words in file, say words[]
  
  cout << "enter a character string :" ;   // there should be no space between input char's
  cin >> input ;
  
  print_matching_words(input) ;
  return 0 ;
}

void print_matching_words(string input)
{
  int s_size strlen(input) ;
  
  for(int i=0; i<num_of_all_words; i++)   // for all words in file
    if(s_size == strlen(words[i])        // first figure out if size match
      if(compare(input, words[i]) )      // compare to see if both have same chars
        cout << words[i] << endl ;       // if so, we found it, print it out 
}

bool compare(const string input, const string word)
{
  string temp[strlen(input)] ;
  bool found = true ;
  strcpy(temp, word) ;   // copy word to temp one
  
  for(int i=0; found && i<strlen(input); i++)   // check all char's of input
    for(int k=0; k<strlen(input); k++)      // for all char's of compared word
    {  if(temp[k] && (input[i] == temp[k]) )   // if we found the char
       {  temp[k] = '\0' ;      // mark it off, so that we'll not encounter it again
          break ;             // break out of the loop
       }
       if(k == strlen(input) - 1)   // if we're at the end of temp and haven't found
         found = false ;          // the char in input yet, this word doesn't match
    }                             // we need to return false
  return found ;
}